I have been trying to burn DVD's through Windows DVD Burner. It opens up once Windows Movie Maker sets up the video. I'm operating in Windows 7 Professional. 

I have set the menu of the DVD, which appears just fine. Then I choose the  slide show. In that window, I select to import a music file. When the DVD burns and the menu appears, there is no music playing,; it's just dead silence. I am using an mp3 file.

What could be wrong?

Original title: No music